GB2008690A - Mechanical Seal Assembly - Google Patents

Mechanical Seal Assembly

Info

Publication number
GB2008690A
GB2008690A GB7843719A GB7843719A GB2008690A GB 2008690 A GB2008690 A GB 2008690A GB 7843719 A GB7843719 A GB 7843719A GB 7843719 A GB7843719 A GB 7843719A GB 2008690 A GB2008690 A GB 2008690A
Authority
GB
United Kingdom
Prior art keywords
flow
faces
fluid
seal
undesirable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7843719A
Other versions
GB2008690B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Borg Warner Corp filed Critical Borg Warner Corp
Publication of GB2008690A publication Critical patent/GB2008690A/en
Application granted granted Critical
Publication of GB2008690B publication Critical patent/GB2008690B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid

Abstract

In a balanced mechanical seal between two zones having different fluids, at least one of which may be corrosive, abrasive, of different lubricity, of elevated temperature and with other undesirable properties or characteristics a buffer fluid is introduced into one zone (92) at a constant rate so as to flow to a location (68) radially inwardly of contacting seal faces (34, 70) and then radially outwardly between said faces. The flow cools and lubricates the seal faces and substantially prevents the radially inward fluid flow. The ratio of areas which determines the seal balance is such that in the direction of buffer fluid flow it is relatively low. However, in the opposite direction of fluid flow, the balance is much higher. Thus in the event of buffer fluid failure, flow of the undesirable fluid across the seal faces is substantially prevented, thus preserving the faces from substantial damage from that undesirable fluid. <IMAGE>
GB7843719A 1977-11-28 1978-11-08 Mechanical seal assembly Expired GB2008690B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85551777A 1977-11-28 1977-11-28

Publications (2)

Publication Number Publication Date
GB2008690A true GB2008690A (en) 1979-06-06
GB2008690B GB2008690B (en) 1982-05-26

Family

ID=25321452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843719A Expired GB2008690B (en) 1977-11-28 1978-11-08 Mechanical seal assembly

Country Status (5)

Country Link
JP (1) JPS5482554A (en)
CA (1) CA1115745A (en)
CH (1) CH633624A5 (en)
DE (1) DE2849256C3 (en)
GB (1) GB2008690B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166205A (en) * 1984-10-25 1986-04-30 Graco Inc Apparatus for liquid sealing a pump shaft
EP1288541A3 (en) * 2001-08-31 2004-01-14 EAGLE INDUSTRY Co., Ltd. Mechanical sealing device
US8857818B2 (en) 2008-04-01 2014-10-14 John Crane Uk Limited Internally pressurized seals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525343C2 (en) * 1995-07-12 2000-11-09 Gat Gmbh Device for transferring fluid between machine parts rotatable relative to one another
DE19722730A1 (en) * 1997-05-30 1998-12-03 Anton Heumann Double-acting fluid pump sealing rotating shaft gas seal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7144142U (en) * 1972-02-17 Burgmann F Asbest U Packungswerk Cooled mechanical seal
DE1073259B (en) * 1960-01-14 Goetzewerke Friedrich Goetze Aktiengesellschaft Burscheid bei Köln Mechanical seal
US2824759A (en) * 1955-10-31 1958-02-25 Borg Warner Liquid cooled seal
AT231771B (en) * 1961-08-08 1964-02-10 Voith Gmbh J M Double-acting, balanced seal for sealing shaft ducts
CH413522A (en) * 1964-07-08 1966-05-15 Bbc Brown Boveri & Cie Mechanical seal for rotating shafts, especially in turbo machines
DE1921795U (en) * 1965-03-02 1965-08-19 Feodor Burgmann Jr Asbest Und SEAL FOR MACHINES WITH TWO HOUSING ENTRIES TO BE SEALED.
DE1750857A1 (en) * 1968-06-12 1971-04-29 Feodor Burgmann Jr Asbest Und Mechanical seal in tandem arrangement
JPS5234041B2 (en) * 1973-11-06 1977-09-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166205A (en) * 1984-10-25 1986-04-30 Graco Inc Apparatus for liquid sealing a pump shaft
EP1288541A3 (en) * 2001-08-31 2004-01-14 EAGLE INDUSTRY Co., Ltd. Mechanical sealing device
US8857818B2 (en) 2008-04-01 2014-10-14 John Crane Uk Limited Internally pressurized seals

Also Published As

Publication number Publication date
CA1115745A (en) 1982-01-05
GB2008690B (en) 1982-05-26
DE2849256B2 (en) 1980-05-22
DE2849256A1 (en) 1979-05-31
CH633624A5 (en) 1982-12-15
JPS5482554A (en) 1979-06-30
DE2849256C3 (en) 1983-12-01

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee